Apache JDO Project - Multiple Datastores/DataSources

This is Interesting: Free IT Magazines  
Home > Archive > Apache JDO Project > November 2006 > Multiple Datastores/DataSources





You are viewing an archived Text-only version of the thread. To view this thread in it's original format and/or if you want to reply to this thread please [click here]

Author Multiple Datastores/DataSources

2006-11-05, 7:11 pm

Hi,

In applications using multiple datastores, the common usage for JDO is
use multiple PMFs. In JPOX we have started the implementation of a
feature where one PMF/PM/TX will handle multiple datastores and I would
appreciate any input especially if you have experienced that before .

My major concerns so far are:

- The metadata declaration (one object to many datastores; many objects
to many datastores)
- the transactional behavior (needs a transactional manager (XA
resources) when running outside a JTA container)
- how to declare multiple datastores in PMF properties and link that to
metadata

Thanks,

Erik Bengtson



Sponsored Links






Free braindumps | Software forum | Database administration forum

Copyright 2003 - 2008 webservertalk.com